using System;
using System.Linq;
using UnityEngine;
using UnityEngine.UI;

namespace ZC
{
    public class FPSCounter : MonoBehaviour
    {
        [SerializeField]
        private Text _txtTime;
        [SerializeField]
        private Text _txtFps;

        [SerializeField]
        private int _fpsCount = 10;

    
        private float[] _fpsArray ;
        private float _avr;
        private float _min;
        private float _max;
        private DateTime _startTime;
    
    
        private void Start()
    {
        _fpsArray = new float[_fpsCount];
        _startTime = DateTime.Now;
    }

        private void Update()
    {
        _fpsArray[Time.frameCount % _fpsArray.Length] = 1f / Time.deltaTime;
        if (Time.frameCount % this._fpsArray.Length == 0)
        {
            _avr = this._fpsArray.Sum() / this._fpsArray.Length;
            _min = float.MaxValue;
            _max = float.MinValue;
            foreach (var f in this._fpsArray)
            {
                if (f < _min)
                    _min = f;
                if (f > _max)
                    _max = f;
            }
            this._txtFps.text = $"Avr:{this._avr:n0}\nMin:{this._min:n0}\nMax:{this._max:n0}";
        }

        var offsetTime = DateTime.Now - this._startTime;
        this._txtTime.text = $"Time:{offsetTime.Hours}:{offsetTime.Minutes}:{offsetTime.Seconds}.{offsetTime.Milliseconds}";
    }
    }
}